LabCompass

John E. Opfer

Mathematics · The Ohio State University

OpenAlex ORCID
Established · publishing since 2000
Cognitive and developmental aspects of mathematical skillsMathematics Education and Teaching TechniquesChild and Animal Learning DevelopmentReading and Literacy DevelopmentEducation Methods and Practices

Publications

92

Citations

4,202

Est. group size

—

Recurring co-author estimate

Active years

26

Publishing since 2000

Research summary
AI-generated

John E. Opfer studies how children and adults understand numbers and mathematical concepts, such as estimating quantities on a number line, learning fractions, and comparing symbolic and non-symbolic number sense. His work combines behavioral experiments, computational modeling, and some neuroimaging to explain how numerical reasoning develops and how math learning can be improved. This research is relevant to students interested in cognitive development, math education, and quantitative reasoning.

Numerical cognition and estimationDevelopment of fraction and proportional reasoningComputational and Bayesian models of learningMath education and cognitive supports for numeracyNeural correlates of math and reading ability

Publication output peaked around 2018 and has generally declined since, with a gap in 2023 and only a couple of papers per year most recently, averaging about 1.6 publications per year over the last five years.

Generated by claude-sonnet-5 from public bibliographic data · Jul 20, 2026

Publication cadence
Publications per year over the last 10 years — averaging 1.6/year recently
2017: 4 publications172018: 12 publications12182019: 4 publications192020: 4 publications202021: 5 publications212022: 3 publications22232024: 3 publications242025: 2 publications2526
Recent publications
Publishes in
  • eScholarship (California Digital Library)×8
  • Developmental Psychology×4
  • PLoS ONE×3
  • Cognitive Science×3
  • Journal of Experimental Child Psychology×2
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This profile was generated automatically from public scholarly data (OpenAlex). Group size and activity levels are estimates derived from co-authorship patterns.

Last updated Jul 19, 2026.

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